4491425 has 6 divisors (see below), whose sum is σ = 5569398. Its totient is φ = 3593120.

The previous prime is 4491419. The next prime is 4491439. The reversal of 4491425 is 5241944.

It can be written as a sum of positive squares in 3 ways, for example, as 1002001 + 3489424 = 1001^2 + 1868^2 .

It is not a de Polignac number, because 4491425 - 2⁸ = 4491169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89804 + ... + 89853.

It is an arithmetic number, because the mean of its divisors is an integer number (928233).

Almost surely, 2^4491425 is an apocalyptic number.

It is an amenable number.

4491425 is a deficient number, since it is larger than the sum of its proper divisors (1077973).

4491425 is a wasteful number, since it uses less digits than its factorization.

4491425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179667 (or 179662 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 4491425 is about 2119.2982329064. The cubic root of 4491425 is about 164.9914290008.

The spelling of 4491425 in words is "four million, four hundred ninety-one thousand, four hundred twenty-five".